JP2008155605A - Tire sealing pumping-up apparatus, and flat-tire repairing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tire sealing pumping-up apparatus which enables a favorable repair of a flat tire. <P>SOLUTION: A pressure-proof hose 42 is respectively connected with pneumatic tires 61, 62 and 63, and a joint hose 36 is connected with the flat tire 50. A stop valve 66 is opened, and the flow passage of the pressure-proof hose 42 is opened. Thus, compressed air is fed into a liquid agent housing section 14 from the pneumatic tires 61, 62 and 63, and a sealing agent 26 in the liquid agent housing section 14 is injected into the flat tire 50 through the joint hose 36 by the pressure of the compressed air. In addition, the compressed air is fed into the flat tire 50 from the pneumatic tires 61, 62 and 63, and the pressure of the flat tire 50 is raised. Thus, since the air is fed into the flat tire 50 at one time from the three pneumatic tires 61, 62 and 63, the internal pressure of the tire can be raised high, and the favorable repair of the flat tire 50 can be performed. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a tire sealing / pump-up device and a puncture tire repair method.

  Conventionally, when a pneumatic tire is punctured, the puncture tire is repaired with a sealing agent without replacing the puncture tire and the wheel, and the inner pressure of the puncture tire is increased (pumped up) to a predetermined reference pressure. -Pump-up devices are known.

As a sealing / pump-up device, a sealing / pump-up device disclosed in Patent Document 1 is known.
In the sealing and pump-up device of Patent Document 1, the pressure source for supplying air is not limited to the air compressor, but the pressure is applied from a non-punctured tire to the bottle containing the repair liquid, and the repair liquid is injected from the bottle into the punctured tire. And add air.

JP 2002-292758 A

By the way, if air is blown into a puncture tire using a device that generates compressed air manually, for example, a foot pump or a pneumatic pump, it takes a lot of time and labor, which is not practical.
Moreover, in the apparatus of said patent document 1, the air pressure of the tire which repaired is high and it is hard to go up, for example, will be as low as 160 kPa or less. As described above, in the apparatus of Patent Document 1, even if the puncture hole can be repaired, the internal pressure of the tire does not increase, which is insufficient for repairing the puncture tire.

  In view of the above facts, an object of the present invention is to provide a tire sealing / pump-up device and a puncture tire repair method capable of repairing a good puncture tire.

  A tire sealing / pump-up device according to claim 1 of the present invention contains a sealing agent inside, a liquid agent outlet having a liquid agent outlet for discharging the sealing agent, and an air inlet for allowing air to flow into the inside. A first connection pipe having one end connected to the liquid agent discharge port and the other end connected to a tire valve of a puncture tire so as to communicate the liquid agent storage portion and the puncture tire; A second connecting pipe connected to the inlet and having the other end branched into a plurality from the middle part connected to a tire valve of a plurality of pneumatic tires to communicate the liquid agent containing part and the pneumatic tire; And an opening / closing valve provided on the second connection pipe closer to the air inlet than the section and capable of opening and closing the flow path of the second connection pipe.

According to this configuration, one end of the first connection pipe is connected to the liquid agent discharge port of the liquid agent storage part that stores the sealing agent therein, and the other end of the first connection pipe is connected to the tire valve of the puncture tire. The fluid container and the puncture tire communicate with each other.
One end of the second connection pipe is connected to the air inlet of the liquid agent storage part, and the other end branched into a plurality from the middle part of the second connection pipe is connected to the tire valves of the plurality of pneumatic tires. The fluid container and the pneumatic tire communicate with each other.

  Opening the on-off valve provided in the second connection pipe on the air inlet side from the intermediate part and opening the flow path of the second connection pipe, air is sent from the plurality of pneumatic tires to the liquid agent storage part, A sealing agent and air are supplied to the puncture tire to repair the puncture tire. In this way, air is supplied from a plurality of pneumatic tires to the puncture tire at a time, so that the internal pressure of the tire can be quickly increased, and a good puncture tire can be repaired.

A tire sealing / pump-up device according to a second aspect of the present invention is the tire sealing / pump-up device according to the first aspect, wherein the tire sealing / pump-up device is provided in the second connection pipe on the air inlet side of the on-off valve and is fed into the liquid agent storage unit. A pressure reducing valve for reducing the air pressure is provided.
According to this configuration, the pressure reducing valve provided in the second connection pipe on the air inlet side of the opening / closing valve reduces the air pressure sent to the liquid agent storage unit, so that too much pressure is applied to the liquid agent storage unit and the puncture tire. Can be prevented and good puncture tires can be repaired.

A puncture tire repair method according to claim 3 of the present invention is a puncture tire repair method used in the tire sealing / pump-up device according to claim 1 or 2,
A first step of increasing the pressure of each of the plurality of non-punctured pneumatic tires to 300 kPa or higher, and a second step of connecting the punctured punctured tire and the plurality of pneumatic tires via a liquid agent storage unit that stores a sealing agent. And a third step of supplying air from the plurality of pneumatic tires to the liquid agent storage portion and supplying the sealing agent and the air to the puncture tire.

According to this configuration, in the first step, the plurality of non-punctured pneumatic tires are each pressurized to 300 kPa or more.
Next, in the second step, the punctured punctured tire and the plurality of pneumatic tires are connected via the liquid agent accommodating part that accommodates the sealing agent.

Next, in the third step, air is sent from the plurality of pneumatic tires to the liquid agent storage portion, and the sealing agent and air are supplied to the puncture tire, so that the puncture tire is repaired.
As described above, since the air is supplied to the puncture tire after the pressures of the plurality of pneumatic tires are once increased to 300 kPa or more, the internal pressure of the tire can be increased, and a good puncture tire can be repaired.

  Since this invention was set as the said structure, repair of a favorable puncture tire can be performed.

Below, an example of an embodiment concerning the present invention is described based on a drawing.
(Configuration of tire sealing / pump-up device)
First, the structure of the tire sealing / pump-up device according to this embodiment will be described. FIG. 1 shows a tire sealing / pump-up device (hereinafter simply referred to as “pump-up device”) 10 according to the present embodiment.

The pump-up device 10 according to the present embodiment repairs a punctured tire with a sealing agent without replacing the punctured tire and the wheel when a pneumatic tire mounted on a vehicle such as an automobile is punctured. Is increased (pumped up) to a predetermined reference pressure.
As shown in FIG. 1, the pump-up device 10 includes a liquid agent containing portion 14 that contains a sealing agent inside, a liquid agent outlet 56 that discharges the sealing agent, and an air inlet 58 that flows air into the inside. I have.

The liquid agent storage unit 14 includes a liquid agent container 16 that stores a sealing agent therein, and an injection unit 18 that is provided in an opening of the liquid agent container 16.
As shown in FIG. 2, a barrel portion 20 having a substantially constant cross-sectional area along the radial direction and a circular, oval or elliptical cross section is formed on the upper part of the liquid container 16. . A substantially cylindrical neck portion 24 that protrudes downward is integrally formed at the lower portion of the liquid agent container 16 via a shoulder portion 22 whose cross-sectional area gradually decreases from the lower end side of the body portion 20.

The liquid container 16 is molded from various resin materials having gas barrier properties and metal materials such as aluminum alloys. The liquid agent container 16 is filled with a slightly larger amount of the sealing agent 26 than a prescribed amount (for example, 200 g to 400 g) according to the type and size of the tire to be repaired by the pump-up device 10.
An air layer G is formed on the upper side of the sealing agent 26 in the liquid agent container 16 in a state where a larger amount of the sealing agent 26 than the prescribed amount is accommodated. However, in order to prevent the sealing agent 26 from being deteriorated due to oxidation or the like, an inert gas such as Ar may be enclosed in the liquid agent container 16 together with the sealing agent 26 at the time of shipment, and the sealing agent 26 is contained in the liquid agent container 16. May be filled without gaps.

  As shown in FIG. 2, the injection unit 18 includes a unit main body 28 formed in a substantially cylindrical shape and a plate-like leg portion 30 extending from the lower end portion of the unit main body 28 to the outer peripheral side. The neck 24 of the liquid agent container 16 is fixed to the upper end of the unit main body 28 by welding. Further, the injection unit 18 is provided with an L-shaped pressure pipe 40 having one end inserted into the liquid container 16 and the other end extending from the injection unit 18.

In the pump-up device 10, as shown in FIG. 2, when the liquid container 16 is set upright above the injection unit 18, the sealing agent 26 in the liquid container 16 is added to the injection unit 18 formed by its own weight. It flows into the pressure supply liquid chamber 32.
The pressurized liquid supply chamber 32 is formed with a liquid agent discharge port 56 for discharging the sealing agent 26 to the outside. The liquid agent discharge port 56 is provided as an example of a first connection pipe via a nipple 34. One end of the joint hose 36 is connected. As a result, the joint hose 36 communicates with the pressurized liquid supply chamber 32 via the nipple 34.

  As shown in FIG. 1, a valve adapter 38 that is detachably connected to the tire valve 52 of the puncture tire 50 is provided at the other end of the joint hose 36. By connecting the valve adapter 38 to the tire valve 52, the pressurized liquid supply chamber 32 of the liquid agent storage unit 14 and the puncture tire 50 communicate with each other via the joint hose 36.

Moreover, the pump-up apparatus 10 is provided with the pressure | voltage resistant hose 42 as an example of the 2nd connecting pipe connected to the pneumatic tires 61, 62, 63, as shown in FIG.
A joint coupler 43 is attached to one end of the pressure hose 42. On the other hand, an air inlet 58 for allowing air to flow into the liquid agent accommodating portion 14 is formed at the tip of the pressure pipe 40, and a connecting member 46 to which the joint coupler 43 can be connected is provided at the air inlet 58. ing. The pressure pipe 40 protrudes into the liquid agent container 16 through the pressurized liquid supply chamber 32 through the peripheral wall portion of the unit main body 28 at the tip opposite to the connection member 46.

  In addition, although the flow of the compressed air from the outside to the inside of the pressurized liquid supply chamber 32 is allowed at the tip of the pressure pipe 40, the compressed air and the backflow of the sealing agent 26 from the inside of the pressurized liquid supply chamber 32 to the outside are allowed. The structure which arrange | positions the non-return valve to prevent may be sufficient.

The pressure hose 42 has a valve adapter 44 attached to the other end portion branched into three from the intermediate portion 42A, and the valve adapter 44 is connected to the tire valves 64 of the three pneumatic tires 61, 62, and 63, respectively. The By connecting the valve adapter 44 of the pressure-resistant hose 42 to the tire valves 64 of the three pneumatic tires 61, 62, 63, the liquid container 14 and the pneumatic tires 61, 62, 63 communicate with each other.
In the present embodiment, three pneumatic tires 61, 62, and 63 are used. However, the number of pneumatic tires used may be two, or four or more.

A stop valve 66 as an example of an on-off valve capable of opening and closing the flow path of the pressure hose 42 is provided on the pressure hose 42 closer to the air inlet 58 than the intermediate portion 42A.
When the stop valve 66 opens the flow path of the pressure hose 42, air can flow between the three pneumatic tires 61, 62, 63 and the liquid agent storage portion 14. By closing the flow path, it becomes impossible for air to flow between the three pneumatic tires 61, 62, 63 and the liquid agent storage unit 14.

The pressure hose 42 closer to the air inlet 58 than the stop valve 66 is provided with a pressure reducing valve 68 for reducing the air pressure sent to the liquid agent storage unit 14.
Even if the pressure from the three pneumatic tires 61, 62, 63 is high, the pressure reducing valve 68 is configured to reduce the pressure to a predetermined pressure and keep the pressure constant. As a result, pressure more than necessary is not applied to the liquid container 14 and the puncture tire 50, and when the puncture tire 50 is repaired and the puncture tire 50 reaches the specified internal pressure, the puncture tire 50 is not further pressurized. It has become.

  As shown in FIG. 3, the puncture repair kit including the pump-up device 10 is a device separate from the pump-up device 10, and a compressed air supply device capable of supplying compressed air to the pneumatic tires 61, 62, 63 by human power. 70. The compressed air supply device 70 according to the present embodiment is a manual air pump, and it is possible to enter air by manually moving the piston in the cylinder up and down. In addition, as the compressed air supply device 70 by human power, for example, a stepping-type air can be used.

  One end of a joint hose 72 is connected to the compressed air supply device 70. A valve adapter 74 that is detachably connected to the tire valve 64 of the pneumatic tire 61, 62, 63 is provided at the other end of the joint hose 72.

(Operation of Tire Sealing and Pump-Up Device According to this Embodiment)
Next, the procedure of the repair method of the puncture tire which repairs the punctured puncture tire 50 using the pump-up apparatus 10 which concerns on this embodiment is demonstrated.

  When repairing a puncture tire when the tire is punctured, first, as shown in FIG. 4, in step 100 (S100), the operator removes the valve adapter 74 in the joint hose 72 of the compressed air supply device 70, The pneumatic tire 61 is connected to the tire valve 64 of the non-punctured pneumatic tire 61 and compressed air is introduced into the pneumatic tire 61 by the compressed air supply device 70 to increase the internal pressure of the pneumatic tire 61 to 300 kPa or more. Similarly, with respect to the other pneumatic tires 62 and 63, the internal pressure is increased to 300 kPa or more. The upper limit for boosting the pneumatic tires 61, 62, 63 is 350 kPa. The reason why the upper limit is set to 350 kPa is that a pressure increase exceeding 350 kPa takes a long time and also ensures safety.

  Next, in step 102 (S102), the valve adapter 44 in the pressure hose 42 is connected to the tire valves 64 of the pneumatic tires 61, 62, and 63, respectively. At this time, the stop valve 66 closes the flow path of the pressure hose 42. Further, the valve adapter 38 of the joint hose 36 is connected to the tire valve 52 of the puncture tire 50.

  Next, in step 104 (S104), the stop valve 66 is opened and the flow path of the pressure hose 42 is opened. Thereby, the compressed air flows out from the pneumatic tires 61, 62, 63, is decompressed by the decompression valve 68, and is sent into the liquid agent storage unit 14 from the air inlet 58. As a result, the sealing agent 26 accommodated in the liquid agent accommodating portion 14 is pushed out from the liquid agent discharge port 56 of the liquid agent accommodating portion 14 by the pressure of the compressed air, and the sealing agent 26 passes through the joint hose 36 and the puncture tire 50. It is injected into. Further, compressed air is supplied to the puncture tire 50 from the pneumatic tires 61, 62, 63, and the puncture tire 50 is pressurized.

The puncture tire 50 is not further pressurized when the puncture tire 50 is repaired by the action of the pressure reducing valve 68 and the puncture tire 50 reaches the specified internal pressure.
As described above, since the air is supplied to the puncture tire 50 at a time after the pressure is increased to 300 kPa or more once after the three pneumatic tires 61, 62, 63, the internal pressure of the tire can be increased to be high. Repair of a flat tire 50 is possible.

Here, the final steady pressure of each tire when air was distributed from three tires to one tire was confirmed by experiments.
In this experiment, four non-punctured tires were prepared, the three tires were set to the following predetermined pressure, the pressure of one tire was set to 0 kPa, and the three tires set to the predetermined pressure were set to 0 kPa. The pressure of each of the four tires when air was distributed to the two tires was confirmed.

As shown in column A of FIG. 5, when the pressure of the three tires before distribution is set to 210 kPa and air is distributed to one tire set to 0 kPa, the pressure of each of the four tires after distribution is 140 to 160 kPa.
As shown in column B of FIG. 5, when the pressure of three tires before distribution is set to 250 kPa and air is distributed to one tire set to 0 kPa, the pressure of each of the four tires after distribution is 165 to 185 kPa.

As shown in column C of FIG. 5, when the pressure of the three tires before distribution is set to 300 kPa and air is distributed to one tire set to 0 kPa, the pressure of each of the four tires after distribution is 200 to 220 kPa.
From this result, since a pneumatic tire is usually 200 kPa to 250 kPa, even if air is distributed from three tires of 200 kPa to 250 kPa, the pressure of each tire after distribution does not exceed 200 kPa and the air pressure is not sufficient I understand that.

Also, from this result, it can be seen that even in a non-punctured state, the pressure of the three tires before distribution needs 300 kPa to ensure the pressure of 200 kPa after distribution.
Therefore, in the puncture state, it is necessary to set the pressures of the three tires before distribution to at least 300 kPa or more, considering that air leaks until the sealing agent as the repair liquid seals the puncture hole. .

  Even if air with a low pressure is introduced into the puncture tire, the air escapes from the puncture hole, so that the tire does not expand and the sealing agent does not turn well to the tire. For this reason, it is necessary to first inflate a certain amount of high-pressure air at a time and then inflate the sealant around the entire tire. Therefore, in the compressed air supply apparatus 70 by human power, it takes time and labor to put air into the puncture tire.

In contrast, in the present embodiment, the pressure of the pneumatic tire is once increased to 300 kPa or more, and air is supplied to the puncture tire from the pressurized pneumatic tire at a time, so that the internal pressure of the tire can be quickly increased. Good puncture tire repair.
The present invention is not limited to the above-described embodiment, and various modifications, changes, and improvements can be made.

FIG. 1 is a schematic view showing a configuration of a tire sealing / pump-up device according to an embodiment of the present invention. FIG. 2 is a schematic diagram showing the configuration of the liquid medicine container according to the present embodiment. FIG. 3 is a schematic diagram illustrating the configuration of the compressed air supply device according to the present embodiment. FIG. 4 is a flow showing the procedure of the puncture tire repair method according to the present embodiment. FIG. 5 is a graph showing the final steady pressure of each tire when air is distributed from three tires to one tire.

Explanation of symbols

10 Pump Up Device 14 Liquid Agent Storage Unit 26 Sealing Agent 36 Joint Hose (First Connection Pipe)
42 Pressure hose (second connecting pipe)
50 Puncture tire 52 Tire valve 56 Liquid discharge port 58 Air inlet 61, 62, 63 Pneumatic tire 64 Tire valve 66 Stop valve (open / close valve)
68 Pressure reducing valve

Claims (3)

A liquid agent containing portion that contains a sealing agent inside, a liquid agent discharge port for discharging the sealing agent, and an air inflow port for flowing air into the inside;
A first connection pipe having one end connected to the liquid agent discharge port and the other end connected to a tire valve of a puncture tire to communicate the liquid agent storage portion and the puncture tire;
A second end which is connected to the air inlet and is connected to a tire valve of a plurality of pneumatic tires to communicate between the liquid container and the pneumatic tire; A connecting pipe,
An on-off valve provided in the second connection pipe on the air inlet side of the intermediate portion, and capable of opening and closing the flow path of the second connection pipe;
A tire sealing / pump-up device. A tire sealing / pump-up device, comprising: a pressure reducing valve that is provided in the second connection pipe on the air inlet side of the opening / closing valve to reduce the air pressure sent to the liquid agent storage unit. A method for repairing a puncture tire used in the tire sealing / pump-up device according to claim 1 or 2,
A first step of boosting each of the plurality of non-punctured pneumatic tires to 300 kPa or more;
A second step of connecting the punctured punctured tire and the plurality of pneumatic tires via the liquid agent accommodating part for accommodating the sealing agent;
A third step of supplying air from the plurality of pneumatic tires to the liquid agent accommodating portion and supplying the sealing agent and the air to the punctured tire;
A puncture tire repair method characterized by comprising:

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